If the actual change in energy was greater than o equal to the energy needed for a phase change to
occur, then we know a phase change occurred.
Lets analyze the isopropanol example,
The arrow labeled with the red "A" hexagon is
the actual energy change.
This arrow is longer than the energy needed for
a phase change to occur arrow, which is dotted
and labeled with a red "Z" box.
Question: What does the above information
implies about a phase change in the
isopropanol? (in other words, did we have a
phase change). Explain.